Under normal operation, a wheel may obtain a tread temperature of 550 °C (1,022 °F). Under severe braking conditions, the generated thermal energy can contribute to thermal shock or alteration of the wheel's mechanical properties.
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Train tracks can become hot to touch immediately after a train passes, especially in hot weather conditions. The friction caused by the trains wheels moving along the tracks generates heat, and this heat can be transferred to the tracks.
Freight and passenger railroad cars and locomotives have flanges on the inside of the wheel. The inside of the wheel has a larger diameter than the outside. The flange keeps the wheels on the track. The same principle is used on model railroads and most toy trains.
Standing upon (or making bodily-contact with) both wheel-rails of a railroad line simultaneously would almost-certainly not result in a life-threatening (nor even mild) electrical-shock of any sort (they are grounded and almost never carry any more than a few stray, harmless volts of electricity, if any).
To help the wheels stay on the track their shape is usually slightly conical. This means that the inside of the wheel has a larger circumference than the outside of the wheel. (They also have a flange, or raised edge, on the inner side to prevent the train from falling off the tracks.)
How heavy is a train wheel? Standard wheel assemblies made of steel and ductile alloy can weigh between 235 to 480 pounds. The lighter-weight assemblies have an average load capacity of 10,000 pounds, while the heavier assemblies have an average capacity of 40,000 pounds.
How could a train possibly move along the tracks without wheels? Trains that hover just above the tracks are actually possible due to magnetic levitation, or maglev for short. These trains use powerful magnets to stay in the air. Magnets generate a magnetic field.
Do trains drop waste on the tracks? Not anymore. In the US until the 1960's, some toilets emptied directly onto the tracks. A sign was posted over the toilet reminding passengers not to flush while the train was on the station.
High temperatures can impact Amtrak operations as the extreme heat can cause rail, bridge and catenary wires to expand. As a safety measure, Amtrak imposes heat restrictions, which require locomotive engineers to operate trains at lower speeds than under normal operating conditions.
Unlike car and truck engines, most locomotives in the U.S. are cooled with water that contains anti-corrosion inhibitors, but does not contain antifreeze compounds.
Just as people can suffer sunburn or heat stroke from too much exposure to sunlight and hot temperatures, rail can bend or warp because of a blistering sun and sweltering temps. If the rail malformations known as a sun kink or track buckle aren't repaired in a timely manner, trains can derail.
The era of the freight train-hopping, job-seeking hobo faded into obscurity in the years following the Second World War. Many hobos from this era have since “caught the westbound,” or died. A small number of so-called hobos still hop freight trains today.
Most rail cars can have a gross weight (the total weight of the load, including the weight of the rail car itself) of up to 286,000 pounds. Heavy axle rail cars can have a gross weight of up to 315,000 pounds. By comparison, the federal gross vehicle weight limit for trucks traveling on the interstate is 80,000 pounds.
Rail cars are far bigger than truck trailersWhat does that look like in terms of weight? Most rail cars can have a gross weight (the total weight of the load, including the weight of the rail car itself) of up to 286,000 pounds. Heavy axle rail cars can have a gross weight of up to 315,000 pounds.
What happens if you stand too close to a train? Air between person and the train moves with high velocity due to dragging effect and the air behind person is approximately still.
On curved sections, the longitudinal (traction or braking) forces between vehicles have a component inward or outward respectively on the curve. In extreme situations these lateral forces may be enough to produce derailment. A special case of train handling problems is overspeed on sharp curves.